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  <h1><span about="http://eurocris.org/ontology/cerif#" property="dc:title">The Common European Research Information Format Ontology<br/> <b>CERIF Ontology</b></span> <span about="http://eurocris.org/ontology/cerif#" property="owl:versionInfo" datatype="xsd:decimal">0.2</span></h1>

  <h2>Namespace Document <span about="http://eurocris.org/ontology/cerif#" property="dc:date" content="2013-02-01T12:00:00+01:00" datatype="xsd:dateTime">01 February</span></h2>
  <h3>Vocabulary based on <em>CERIF Model 1.3</em></h3>
    
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			<dt>This version:</dt>
			<dd><a rel="dc:hasVersion" 
				rev="dc:isVersionOf" href="http://eurocris.org/ontology/cerif/20130201/index.html">http://eurocris.org/ontology/cerif/20130201/index.html</a> (<a href="http://eurocris.org/ontology/cerif/20130201/cerif.rdf">RDF</a>)</dd>

			<dt>Latest version:</dt>
			<dd><a href="http://eurocris.org/ontology/cerif/index.html">http://eurocris.org/ontology/cerif/index.html</a> (<a href="http://eurocris.org/ontology/cerif/cerif.rdf">RDF</a>)</dd>

			<dt>Previous version:</dt>
			<dd><a href="http://spi-fm.uca.es/neologism/cerif">http://spi-fm.uca.es/neologism/cerif</a> (<a href="http://spi-fm.uca.es/neologism/cerif.rdf">RDF</a>)</dd>

			<dt>Authors:</dt>
			<dd><a rel="rdfs:seeAlso" href="http://www.linkedin.com/in/msicilia">Miguel-Ángel Sicilia</a> (on behalf of Open Data Task Group in <a rel="rdfs:seeAlso" href="http://eurocris.org">EuroCRIS</a>)</dd>
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		<p class="copyright"><span about="http://eurocris.org/ontology/cerif#" property="dc:rights">Copyright &#169; 2013 EuroCRIS</span></p>
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					<img src="http://www.eurocris.org/Images/Top_logo.gif" width="150" alt="EuroCRIS" />
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					<b>EuroCRIS: The European Organization for International Research Information</b>
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					<a href="http://eurocris.org">Announcements, descriptions, use cases, ...</a>
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					<b>Common European Research Information Format (CERIF) Ontology repository</b>
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					<a href="http://code.google.com/p/cerif-linked-data/">Source code, reference implementation, guidelines, ...</a>
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<h2 id="sec-status">Abstract</h2>
<p about="http://eurocris.org/ontology/cerif#" property="dc:description">
The <em>Common European Research Information Format (CERIF) Ontology Specification</em> provides basic concepts and properties 
for describing research information as semantic data. This document contains a RDFa description of the <em>Common European Research Information Format (CERIF) Ontology</em> developed by EuroCRIS.
</p>


  <h2 id="sec-toc">Table of Contents</h2>

  <ul>
    <li><a href="#sec-status">Status of This Document</a></li>
    <li><a href="#sec-glance">The CERIF Ontology at a glance</a></li>
    <li><a href="#sec-intro">Introduction</a></li>
    <li><a href="#sec-example">Examples</a></li>
    <li><a href="#sec-crossref">The CERIF Ontology cross-reference: Listing the Ontology %s</a></li>
    <li><a href="#sec-extrefs">External Vocabulary References</a></li>
    <li><a href="#sec-datasets">List of datasets publishing CERIF linked data</a></li>
    <li><a href="#sec-evolution">Evolution and Extension of the CERIF Ontology</a></li>
    <li><a href="#sec-ack">Acknowledgments</a></li>
    <li><a href="#sec-changes">Recent Changes</a></li>
  </ul>

    <a id="sec-status"></a>
    <div class="status">
        <h2>Status of This Document</h2>
        
        <p about="http://eurocris.org/ontology/index.html">The template of this specification is derived from the <a rel="rdfs:seeAlso" href="http://xmlns.com/foaf/spec/">FOAF
            Vocabulary Specification</a>, which was created by <a rel="rdfs:seeAlso" href="http://danbri.org/">Dan Brickley</a> and <a rel="rdfs:seeAlso" href="http://nicecupoftea.org/">Libby Miller</a>,
        and the <a rel="rdfs:seeAlso" href="http://musicontology.com/">Music Ontology Specification</a>, which was created by <a rel="rdfs:seeAlso" href="http://moustaki.org/">Yves Raimond</a>. Also, it was
        customized for EuroCRIS by <a rel="rdfs:seeAlso" href="http://www.linkedin.com/pub/iván-ruiz-rube/1a/33/97">Iván Ruiz-Rube</a>.</p>
        
        
        <p> This document is created by combining the <a href="http://eurocris.org/ontology/cerif.rdf">RDFS</a> machine-readable
        <em>Common European Research Information Format (CERIF) Ontology</em> with a human-readable <em>HTML</em> representation that includes RDFa annotations. The RDF/XML version of the specification is also available directly from the namespace URI.
        </p>
        
        <p>This specification serves as the <em>CERIF Ontology</em> "namespace document". As
        such it describes the <em>CERIF Ontology</em> and the terms (<a href=
            "http://www.w3.org/RDF/">RDF</a> classes and properties) that
        constitute it, so that <a href=
            "http://www.w3.org/2001/sw/">Semantic Web</a> applications can
        use those terms in a variety of RDF-compatible document formats
        and applications.</p>
        
        
  <a id="sec-glance"></a>
  <h2 id="glance">The CERIF Ontology at a glance</h2>
  
  </p> A snapshot of the <em>Common European Research Information Format (CERIF) Ontology</em> is presented below. </p>
        
  <img src="./cerifOntology0-2.png" title="The CERIF Ontology - snapshot" alt="The CERIF Ontology - snapshot" />
  
  <p>An a-z index of <em>CERIF Ontology</em> terms, by %s.</p>
 
 
 %s

  <div style="clear: left;"></div>

        
        <h2 id="sec-intro">Introduction</h2>
        
        <p about="http://eurocris.org/ontology/index.html">Since the publication of the first version of the <a href="http://www.eurocris.org/Index.php?page=CERIFreleases&t=1">CERIF model</a>, it has grown in quantity and quality of the concepts represented in it. The model became a recommendation of the European Commission in 1991 and 2000. Thanks to CERIF data model, it is possible to develop comprehensive research information systems (RIS) and at the same time, to allow further interoperability between different RIS. This specification is intended to adapt CERIF research information according to the Linked Data paradigm. This document is targeted to providers of research information systems based on CERIF, interested on publishing data according to the Linked Data approach.</p>
        
        <p about="http://eurocris.org/ontology/index.html">The current ontology resulted from a bottom-up approach of the transformation of a relational structure to an ontological structure. Entities and attributes of the extended relational CERIF model have been transformed into ontology axioms; the types and roles as defined in the CERIF Semantics have been translated into a vocabulary.</p>
       
        <p about="http://eurocris.org/ontology/index.html">The CERIF research entities have been transformed into RDF classes and their attributes into properties. For the class names we used conceptual names (e.g. person or project) instead of the physical CERIF table names (cfPers, cfProj), because there is no longer a limitation imposed by any database, and linked data are semantically inspired. The resulting properties and classes are described through common annotation properties like <em>rdfs:label</em> and <em>rdfs:comment</em> in the ontology. In addition to concrete RDF classes (person, project), we added a number of abstract classes to group the class concepts inline with CERIF specification documents, namely: <em>Base, Result, SecondLevel, and Infrastructure</em>; these share a <em>cerif:internalIdentier</em> property.</p>
        
        <p about="http://eurocris.org/ontology/index.html">In addition to the above ontology, we defined a <a href="./../semcerif/index.html">controlled vocabulary</a> to gather the relevant types and roles in the research context of the involved VOA3R entities. The vocabulary includes several RDF classes describing CERIF classification schemes, e.g. types of organizational units, as well as a number of RDF properties semantically enriching the relationships between CERIF entities, like roles of a person in a research project. </p>
        
        <div align="center"><img src="./context.png" title="Context" alt="Context" /></div>

        
        <!-- ================================================================== -->
        

        
  <h2 id="sec-example">Example</h2>
  
    <p>A graphic of a simple example of an use case of the <em>Common European Research Information Format (CERIF) Ontology</em> - A given person is manager of a research project:</p>
  
    <div about="http://eurocris.org/ontology/index.html" rel="rdfs:seeAlso">
<img src="relationship.png" title="The Common European Research Information Format (CERIF) Ontology - A given person is manager of a research project" 
alt="The Common European Research Information Format (CERIF) Ontology - A given person is manager of a research project" /></div>

    <p>A graphic of another example of an use case of the <em>Common European Research Information Format (CERIF) Ontology</em> - A given organization is classified as a university:</p>
    <div about="http://eurocris.org/ontology/index.html" rel="rdfs:seeAlso">
            <img src="./classification.png" title="The Common European Research Information Format (CERIF) Ontology - A given organization is classified as a university" alt="The Common European Research Information Format (CERIF) Ontology - A given organization is classified as a university" /></div>
        
  <p>RDF/N3 representation of a simple example of an use case of the <em>Common European Research Information Format (CERIF) Ontology</em> - a research project (see also <a about="http://eurocris.org/ontology/index.html"
  rel="rdfs:seeAlso" href="http://voa3r.cc.uah.es:8080/dataset/data/projects/VOA3R">N3</a> for complete and downloadable representation of this example):</p>

  <div class="example">
    <pre>
@prefix cerif: &lt;http://eurocris.org/ontology/cerif/0.1#&gt; .
@prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt; .
@prefix dc: &lt;http://purl.org/dc/elements/1.1/&gt; .
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt; .

&lt;http://example.org/resource/projects/VOA3R&gt;
&nbsp;&nbsp;a cerif:Project ;
&nbsp;&nbsp;cerif:title "Virtual Open Access Agriculture and Aquaculture Repository"@en ;
&nbsp;&nbsp;cerif:uri &lt;http://voa3r.cc.uah.es&gt; ;
&nbsp;&nbsp;cerif:startDate "2010-06-01"^^xsd:date ;
&nbsp;&nbsp;cerif:endDate "2013-05-01"^^xsd:date ;
&nbsp;&nbsp;cerif:abstract "The general objective of the VOA3R project is to improve the
&nbsp;&nbsp;&nbsp;spread of European agriculture and aquaculture research results by using an innovative approach
&nbsp;&nbsp;&nbsp;to sharing open access research products"@en ;
&nbsp;&nbsp;cerif:acronym "VOA3R" ;
&nbsp;&nbsp;cerif:internalIdentifier "cfProj-voa3r-ID" ;
&nbsp;&nbsp;cerif:keyword "Agriculture", "Aquaculture", "Open Access", "Research"@en ;
&nbsp;&nbsp;## Materialized inferred triples
&nbsp;&nbsp;rdfs:label "Virtual Open Access Agriculture and Aquaculture Repository"@en ;
&nbsp;&nbsp;dc:title "Virtual Open Access Agriculture and Aquaculture Repository"@en ;
&nbsp;&nbsp;foaf:homepage &lt;http://voa3r.cc.uah.es&gt; .
&nbsp;&nbsp;dcterms:abstract "The general objective of the VOA3R project is to improve the
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;spread of European agriculture and aquaculture research results by using an innovative approach
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;to sharing open access research products"@en ;
&nbsp;&nbsp;dc:subject "Agriculture", "Aquaculture", "Open Access", "Research"@en .                        
</pre>
  </div>

<div style="clear: left;"></div>


 

  <h2 id="sec-crossref">Ontology %s</h2>

  <p>The <em>Common European Research Information Format (CERIF) Ontology</em> introduces the following %s. There is a link at the 
top of this document to the RDF/XML version.</p>

  <!-- the following is the script-generated list of classes and properties -->
 

<!-- this is the a-z listing -->
%s

<!-- and this is the bulk of the vocab descriptions -->
%s

        

<h2 id="sec-extrefs">External Vocabulary References</h2>

<p>
The description of the terms in the <em>CERIF Ontology</em> 'dictionary' make reference to classes and properties elsewhere. This section of the <em>CERIF Ontology</em> 
specification provides a placeholder reference for any <em>CERIF Ontology</em> mention of externally defined terms. For example, sometimes we might say that <em>CERIF Ontology</em> property has 
a domain or range of an externally defined class, or that a <em>CERIF Ontology</em> class is a sub-class of an external class, or 'disjoint with' such a class (ie. has no 
common members). Such claims help fix the intended meaning of <em>CERIF Ontology</em> terms in relationship to other 'peer' vocabularies.
Currently, the <em>CERIF Ontology</em> makes reference to the following vocabularies:</p>
<ul>
<li><a href="http://xmlns.com/foaf/spec/">Friend of a Friend Vocabulary</a></li>
<li><a href="http://bibliontology.com/specification">Bibliographic Ontology</a></li>
<li><a href="http://dublincore.org/documents/2012/06/14/dcmi-terms/">DCMI Metadata Terms</a></li>
</ul>

<h2 id="sec-datasets">List of datasets publishing CERIF linked data</h2>
        
        <ul>
            <li><a href="http://voa3r.cc.uah.es:8080/dataset/">Virtual Open Access Agriculture and Aquaculture Repository</a></li>
        </ul>
        

        
        <h2 id="sec-evolution">Evolution and Extension of the CERIF Ontology</h2>
        
        <p>The <em>Common European Research Information Format (CERIF) Ontology</em> is identified by the namespace URI
        '<code about="http://eurocris.org/ontology/cerif#" property="vann:preferredNamespaceUri" datatype="xsd:anyURI">http://eurocris.org/ontology/cerif#</code>'. Revisions and
        extensions of the <em>Common European Research Information Format (CERIF) Ontology</em> are conducted through edits to this document,
        which by convention is accessible in the Web via the namespace URI.
        For practical and deployment reasons, note that <b>we do not
            update the namespace URI as the vocabulary matures</b>.
        </p>
        
        <p>
        The evolution of the <em>Common European Research Information Format (CERIF) Ontology</em> is best considered in terms of the
        stability of individual vocabulary terms, rather than the
        specification as a whole. As terms stabilise in usage and
        documentation, they progress through the categories
        '<strong>unstable</strong>', '<strong>testing</strong>' and
        '<strong>stable</strong>'. Older terms are marked '<strong>archaic</strong>' which allows the possibility of older forms to become modern again.</p><!--STATUSINFO-->
    </div>

  <h2 id="sec-ack">Acknowledgments</h2>

  <p>This work was supported by EC Funding under the VOA3R project through the grant agreement no. 250525, and META-NET through grant agreement no. 249119.</p>

<h2 id="sec-changes">Recent Changes</h2>

<pre>
=========================
Version 0.2 (February 2013)
=========================
* ADDED: New CERIF Base Entity
* CHANGED: Ontology location in EuroCRIS domain
    
=========================
Version 0.1 (January 2012)
=========================
    
* ADDED: Initial version of the ontology
    
</pre>

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